Cheesy Ham and Mashed Potato

Ingredients

• Leftover mashed potatoes: brings creaminess and acts as the comforting base. Use smooth, well-seasoned potatoes for best texture
• Shredded Cheddar cheese: divided between the layers provides rich flavor and gooey melting goodness. Sharp cheese offers a nice tang while mild is mellow
• French fried onions: add a delightful crunch and bursts of savory flavor. Opt for fresh packages to ensure crispness
• Diced leftover cooked ham: offers smoky, salty heartiness. Choose good quality ham with even marbling for tender bites
• Frozen peas and carrots: add color and mild sweetness. Thaw and drain to avoid excess moisture in the casserole
• Condensed cream of mushroom soup: binds the filling together and adds savory depth. Stir well before mixing for a creamy consistency
• Dry mustard: infuses a subtle tangy kick that enhances all the flavors without overpowering
• Granulated garlic: contributes gentle warmth and aroma. Fresh ground pepper adds a slight bite and rounds the seasoning

Step-by-Step Instructions

Sculpt the Potato Shell:

Mix half of the shredded Cheddar cheese and half the French fried onions into the mashed potatoes until evenly combined. Press the potato mixture firmly over the bottom and sides of a 2-quart casserole dish forming a thick shell. This creates a crispy potato crust that holds the filling.

Prepare the Filling:

In a large bowl combine the diced ham, thawed and drained peas and carrots, cream of mushroom soup, dry mustard, granulated garlic, and black pepper. Stir thoroughly until all ingredients are fully incorporated for a flavorful, cohesive filling.

Assemble and Cover:

Spoon the ham mixture gently into the prepared mashed potato shell, filling it evenly. Cover the casserole loosely with aluminum foil to prevent the top from drying out while baking.

Bake Covered:

Place the covered casserole into the preheated oven at 375 degrees Fahrenheit. Bake for 45 minutes allowing the filling to heat through and meld the flavors while the potato shell crisps underneath.

Add Toppings and Finish Baking:

Remove the casserole from the oven and sprinkle the remaining shredded Cheddar cheese and French fried onions evenly over the top. Return to the oven uncovered and bake for an additional 5 minutes until the cheese melts and the onions turn golden and crispy.

Rest Before Serving:

Remove the casserole from the oven and let it rest at room temperature for 5 to 10 minutes. This resting period helps the filling set slightly making it easier to cut and serve while enhancing the overall flavor.

Storage Tips

Store any leftovers in an airtight container in the refrigerator for up to three days. Reheat in the oven rather than microwave to retain the crispy top and avoid sogginess. This casserole also freezes well in individual portions so you can thaw and enjoy it on busy days.

Ingredient Substitutions

Swap leftover chicken or turkey for ham to change up the protein without altering the comforting nature. Use cream of chicken or cream of celery soup instead of mushroom for a different flavor profile. Frozen mixed vegetables like corn and green beans can be used in place of peas and carrots depending on your preference.

Serving Suggestions

Serve this casserole alongside a fresh green salad or roasted vegetables for a complete balanced meal. It pairs well with mustard or tangy ketchup on the side for those who like an extra flavor kick. Perfect for potlucks and family dinners because it’s easy to portion and satisfies a crowd.